CVE-2026-34933

MEDIUM EPSS 10.3%
Published Apr 3, 20262mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Apr 3, 2026 2mo ago
Last Modified Jun 17, 2026 1w ago

Description

Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. Prior to version 0.9-rc4, any unprivileged local user can crash avahi-daemon by sending a single D-Bus method call with conflicting publish flags. This issue has been patched in version 0.9-rc4.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
10.3% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-617

Affected Products 4

VendorProductVersionRange
avahiavahi* <0.9
avahiavahi0.9any
avahiavahi0.9any
avahiavahi0.9any

References 4

  • openwall.com http://www.openwall.com/lists/oss-security/2026/04/11/9
    ExploitMailing ListThird Party Advisory
  • github.com https://github.com/avahi/avahi/commit/625ca0fac19229f6dfa3a6c6b698ae657187e50c
    Patch
  • github.com https://github.com/avahi/avahi/pull/891
    Issue TrackingPatch
  • github.com https://github.com/avahi/avahi/security/advisories/GHSA-w65r-6gxh-vhvc
    ExploitPatchVendor Advisory

Remediation

  • github.com https://github.com/avahi/avahi/commit/625ca0fac19229f6dfa3a6c6b698ae657187e50c
    Patch
  • github.com https://github.com/avahi/avahi/pull/891
    Issue TrackingPatch
  • github.com https://github.com/avahi/avahi/security/advisories/GHSA-w65r-6gxh-vhvc
    ExploitPatchVendor Advisory